Finished in black, the Halo LZR104MB is an 4 foot line voltage single circuit miniature track for your Halo track lighting configuration. The single circuit miniature track LZR104MB measures in 1-3/8 inches width x 9/16 inches in height. The Halo LZR104MB has a visual polarity groove that indicates proper installation for your lampholders, giving you a hassle-free, fail-safe installation. For added ease, the connectors simple push into the ends of the track, eliminating the need for any splicing. With a single circuit, 120V miniature track, the LZR104MB can accept both Lazer Track lampholders and Halo Power-Trac lampholders for your track lighting needs. The LZR104MB is UL listed and CSA certified for safe and efficient usage.